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ELECTRICAL
WIRING
Warning! Always switch off machine
before working on electrical connec-
tions.
The instrument has screw terminals for
connecting electrical cables with a diame-
ter of 2,5 mm
2
max. (only one conductor
per terminal for power connections). for
terminal capacity, see the label on the
instrument. Make sure that the power
voltage complies with the device voltage.
Probe cables, power supply cables and the
TTL serial cable should be kept separate
from power cables.
The sensor can be extended using an ordi-
nary bipolar cable (note that extending
the probe may affect the electromagnetic
compatibility (EMC) of the instrument:
special care must be used when wiring).
• version with PTC/NTC input:
The sensor has no connection polarity.
• version with V/I/Pt100-TC input:
NOTE: Check the probe connection
polarity.
Analogue input table
Analogue input
Model
NTC-PTC probe
EM300(LX)
Pt100-TcK-TcJ probe
EM300(LX)
EWPA 007/030
EM300(LX)
EWHS 280/300/310*
EM300(LX)
0...1/5/10 V voltage input
EM300(LX)
0/4...20mA current input
EM300(LX)
NOTE: For TECHNICAL DATA and connections
using EWPA and EWHS probes refer to the
relevant technical data sheets and/or diagram
on last page.
* external power supply.
For external power supply characteristics, see
characteristics of connected sensor.
MECHANICAL ASSEMBLY AND CUT-OUT
switching
models
EM300(LX)
GENERAL TECHNICAL
DATA
Front protection: IP65. Casing: PC+ABS
UL94 V-0 resin plastic body, polycarbonate
front, thermoplastic resin buttons.
Dimensions: front panel 74x32 mm,
•depth 30 mm (terminals excluded)
•'switching models': depth 60 mm (termi-
nals excluded)
Mounting: on panel, with drilling template
71x29 mm (+0.2/-0.1 mm).
Operating temperature: -5...55 °C.
Storage temperature: -30...85 °C.
Usage ambient humidity: 10...90 % RH
(non-condensing).
Storage ambient humidity: 10...90% RH
(non-condensing).
Buzzer output: only in certain models.
(LX MODELS ONLY)
Serial: TTL for connection to
•Copy Card;
•TelevisSystem.
Consumption:
• 230V model: 1,8 W max.;
• 12V model: 0.5 W max.
• 'switching' models: 3 W max.
Power supply:
• 230Va ±10% 50/60 Hz or
• 12Va/c ±10% 50/60 Hz or
• 12-24Va ±10%, 12-36Vc ±10% SELV
(only models NTC/PTC & Pt100-TC)
Warning: check the power supply specified
on the instrument label: contact the Sales
Office for further information
NOTE: The technical characteristics in
this document concerning measure-
ments (range, accuracy, resolution, etc.)
refer to the instrument in the strictest
sense and not to any accessories provid-
ed such as probes, for example.
This means that an error introduced by
the probe is added to any error that is
in the instrument.
The unit has been designed to be
panel-mounted: Drill a 29x71 mm
hole, insert the keyboard and fix it
in place with the special brackets
provided. Do not assemble the key-
board in excessively dirty and/or
dirty locations because it is
designed to be used in locations
with normal pollution levels. Always
make sure that the area next to the
unit cooling slits is adequately ven-
tilated.
only TTL models
EM300(LX) TECHNICAL DATA
WITH PTC/NTC INPUT
Display range:
• NTC probe: –50.0...110.0°C (–58...230°F);
• PTC probe: –55.0...140.0°C (–67...284°F)
on display 3 1/2 digits + sign.
Analogue input: one PTC or NTC input
(parameter-selectable).
Measurement range: from -55 a 140 °C.
Accuracy: better than 0.5% of bottom scale
+ 1 digit.
Resolution: 0.1°C (0.1°F up to +199.9°F;
1°F above).
WITH V INPUT - I INPUT
Display range:
-99...100 (ndt = n), -99.9...100.0 (ndt = y),
-999...1000 (ndt = int) on display 3 1/2
digits + sign.
Analogue input (see table):
• V input (0-1V, 0-5V, 0-10V) or
• I input (0...20mA, 4...20mA);
Measurement range: from –999 to 1000.
Accuracy: better than 0.5% of bottom scale
+ 1 digit.
Resolution: 1 or 0.1 digits depending on
parameter settings.
Current input impedance: 100 ohm
Voltage input impedance: 20K ohm
NOTE: for 3-wire sensor connections the
maximum current supplied by the device
is 25mA (measurement + sensor power
supply)
WITH PT100-TC INPUT
Viewing range:
• Pt100 model : -200...800°C
(-328...1472°F),
• TcJ model -40...760°C (-40...1400°F),
•TcK model -40...1350°C (-40...2462°F)**
** (-40..1999°F) above which SuP is
displayed, with decimal point, selectable
through parameter ndt
1
on 3 digit &
/
+ mark display.
2
Analogue input: one PT100 input or TcJ or
TcK depending on model.
Measuring range: from -200 to 1999.
Accuracy:
• Pt100 model : 0,5% for all scale + 1 digit;
0,2% from -150 to 300°C.
• TcJ model: 0,4% for all scale + 1 digit;
• TcK model 0,5% for all scale + 1 digit;
0,3% from -40 to 800°C.
Resolution:
• Pt100 model: 0,1°C (0,1°F) within 199,9
°C, 1°C (1°F) over
• TcJ/TcK model 1°C (1°F).
Power supply: 12/24 Va/c ±10% or 230Va
±10% 50/60 Hz.
NOTE: in model Pt100 the thermal drift
in the -5...55°C range can reach 3°C.
3/6
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